A self-tuned millimeter wave transceiver module includes a microwave monolithic integrated circuit having at least one amplifier. Gender-specific angled wing portions of the back pad contain an armor layer and extra padding to protect the bony protrusions of both the male and female pelvis. Various inventive shifting assemblies having shift cams and shift cam cages can be used to facilitate adjusting the transmission speed ratio of a CVT. Furthermore, an interrupt of audio data at change of images can be prevented, so that discomfort felt by a user can be decreased.